<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <style>
        html {
            color: #888;
            font-family: sans-serif;
            height: 100%;
            width: 100%;
        }
    </style>
</head>
<body>
    <h1>Hello World</h1>
</body>
</html>
